package com.steam.filter;

import com.alibaba.fastjson.JSON;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import com.netflix.zuul.exception.ZuulException;
import lombok.SneakyThrows;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
import java.util.HashMap;

@Component
public class LoginFilter extends ZuulFilter {
    @Override
    public String filterType() {
        return "pre";
    }

    @Override
    public int filterOrder() {
        return 0;
    }

    @Override
    public boolean shouldFilter() {
        HttpServletRequest request = RequestContext.getCurrentContext().getRequest();
        String uri = request.getRequestURI();
        if (uri.endsWith("login") || uri.endsWith("register")) {
            return false;
        }
        return true;
    }

    @SneakyThrows
    @Override
    public Object run() throws ZuulException {
        HttpServletRequest request = RequestContext.getCurrentContext().getRequest();
        HttpServletResponse response = RequestContext.getCurrentContext().getResponse();
        response.setContentType("application/json;charset=utf-8");
        String token = request.getHeader("token");

        if (StringUtils.isEmpty(token)) {
            PrintWriter writer = response.getWriter();
            HashMap<String, Object> map = new HashMap<>();
            map.put("success",false);
            map.put("message","亲登录");
            map.put("obj","nologin");
            String str = JSON.toJSONString(map);
            writer.write(str);
            RequestContext.getCurrentContext().setSendZuulResponse(false);
        }
        return null;
    }
}
